| Index | Plummer | Idaho | National |
| Average Test Scores | 18% | 47% | 48% |
| Student/Teacher ratio | 11:1 | 17:1 | 16:1 |
| Total public schools | 2 | 446 | 79,221 |
| Total private schools | n/a | 83 | 24,874 |
| Total post-secondary schools | n/a | 34 | 7,963 |
| Index | Plummer | Idaho | National |
| Completed 8th grade | 78.4% | 85.7% | 84.3% |
| Completed high school | 72.5% | 84.8% | 83.0% |
| Completed some college | 47.7% | 62.4% | 59.4% |
| Completed associate degree | 13.1% | 35.6% | 38.5% |
| Completed bachelors | 8.7% | 26.2% | 30.3% |
| Completed masters | 2.6% | 8.4% | 11.5% |
| Completed professional degree | 0.8% | 2.6% | 3.3% |
| Completed doctorate | 0.5% | 1.1% | 1.3% |
There are a total of 2 public schools, n/a private schools and n/a post-secondary schools in Plummer. Using the proficiency score averages, the average test scores for Plummer, ID schools is 18%. The average student to teacher ratio is 11:1. In Plummer, ID, an average of 78.4% of students have completed 8th grade and an average of 72.5% have completed high school.
| City | Population | Avg. Test Scores | National Avg. |
| Rockford, WA | 418 | 61% | 26.7% |
| Tekoa, WA | 776 | 55% | 14.6% |
| St. Maries, ID | 3,219 | 41% | 14.6% |
| Harrison, ID | 279 | 38% | 21.9% |
| De Smet, ID | 160 | 10% | 79.2% |
| Plummer, ID | 1,006 | 18% | 61.8% |
| City | Population | Avg. Test Scores | National Avg. |
| Le Roy, MN | 1,006 | 54% | 12.2% |
| Avoca, NY | 1,006 | 55% | 13.5% |
| San Miguel, NM | 1,006 | 32% | 33.3% |
| Mansfield, IL | 1,006 | 27% | 44.8% |
| Carlton, MN | 1,006 | 55% | 13.5% |
| Plummer, ID | 1,006 | 18% | 61.8% |
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